Johann rauschenbacii



(No Model.)

J. RAUSCHENBA-CH. STEM WINDING WATCH.

Patented Peb.4, 1890.

Jim;

N. PETE MW. Wm B. C.

UNITED STATES PATENT OFFICE.

JOI'IANNT RAUSCIIENBACII, OF SCHAFFHAUSEN, SWITZERLAND, ASSIGNOR TO THEINTERNATIONAL \VATCH COMPANY OF J. RAUSQHENBAOH, OF

SAME PLACE.

STEM-WINDING WATCH.

SPECKFICATION forming part of Letters Patent No. 420,919, dated February4:, 1890.

Application filed August 22, 1889. Serial No. 321,655. (No model.)

To all whom it may concern.-

Be itknown thatI, J OHANN RAUSCHENBACH, manufacturer, of Schaffhausen,in Switzerland, have invented an Improved Hand-Set: ting Device forWatches, of which the following is a specification.

The invention consists of a hand-setting device for watches, allowingthe withdrawing of the work out of its case without withdrawing the stemand crown out of the pendant, said device being specially combined forwatches having the pendant provided with a settingdevice intended toallow the stem to be moved axially and affixed in two differentpositions, one of which causes the winding of the watch by turning thecrown, the other one of which sets the hands in turning up the crown.

In the drawings, Figure 1 is an elevation of the device ready forwinding up the watch. Fig. 2 is a back view of the same. Fig. 8 showsthe combined stem and sliding pinion in larger size, and Fig. 4 is anend view of the same.

A is a hollow axis, in the squared hole 0 which is received one end ofthe square axis D, having its pivot D in a bridge F and on the otherside the square stem R, which belongs to the winding-crown. The axisAcarrics the wheel B and is between the plate and the spring-barrelbridge.

0 is a sliding pinion which slides on the axis D, and the purpose ofwhich is to transmit the rotation of the axis 1) and stem R to thehand-setting 'wheel L when thrown into gear with it by means of theoscillating lever M. I

The lever G is upon a pivot P. One of its arms G is acted upon by aspring H and presses upon the end of the pivot D. The other arm G of thelever G bears against a stud or pin K, which is aiiixed to one arm ofthe lever M and passes through a suitable opening of the plate.

J is a snail-cam, the purpose of which is to adjust at willthe power ofthe spring H in putting the hand-setting mechanism out of action.

Fig. 2 shows the position of the lever M pivoted at O, and which carriesat its shorter arm the stud or pin K, that bears against the arm G ofthe lever G. The other arm M of the lever M is within the groove of thesliding pinion G.

N is a spring acting upon the oscillating lever M, so as to cause theinclined teeth of the pinion O to engage the inclined teeth of the wheelB.

The mechanism works as follows: \Vhen the parts are secured in the caseand the crown and stem at rest that is to say, pressed downthe hand-settin g mechanism takes the position shown by full lines in thedrawings,

the pivot D pressing the lever-arm G downward, and the arm G does notact upon the pin K, and consequently the lever M, acted upon by thespring N, causes the inclined teeth of the pinion O to gear with theinclined teeth of the wheel 13 and the parts are in position for windingthe watch. If one draws now the crown and stem R outward into theirraised position, which position is determined by means of a well-knownmechanism, (not shown herein,) the pressure of the stem R upon the stemD is relaxed, and the spring H throws the lever G into the positionshown by dotted lines in Fig. 1, whereby the arm G" moves the pin K intothe position K, causing the lever M to oscillate into the position shownby dotted lines in Fig. 2, and sliding the pinion C and disengaging itfrom the wheel B and putting it into gear with the handsetting wheel L.

To replace the whole mechanism into its first positionthat is to say,into the winding-up position-the stem R must be pressed inward so as tomove the lever-arm G, the axis D, and pivot D until the stud K escapesfrom the top of the arm G, allowing the spring N to throw the lever Mand connect the pinion O with the wheel B.

WVhen the works are taken out of the case, the stem R remaining, asindicated above, in the pendant, the axis D will be moved endwise by thelever G, and the lever M will throw the pinion G into gear with thewheel L, stopping thereby the watch-movement. To avoid this the spring Hmay be released by turning the snail-cam J.

The bending and relaxing of the spring H may be produced by any suitablemeans, and the described mechanism may be used if the stem R is made ofone piece with the axis D.

I claim as my inVention- 1. The combination, with the winding andhand-setting wheels, of the square stem and axis having a pivot at theend and capable of receiving an end movement from the crown, the leverG, acted upon by the pivot end of the axis, the lever M and stud Kprojecting therefrom, the sliding pinion O on the axis for connectingthe winding or hand-setting mechanism, and the springs for acting on thelevers G M, substantially as set forth.

2. The combination, with the winding and hand-setting wheels, of thesquare stem R, and axis D, made in two parts and acted upon by thecrown, the pinion Q, sliding on the axis and connecting with either thewinding or setting wheels, the lever M, and its spring 20

